I would like flat versions of these because they would be useful for a MERP Research Techtree i am doing.
cant really do "flat" in the sense that they would hover over the back surface of whatever brick its up against - if it doesnt, it would have zfighting problems.
I updated the pack - they now have brick icons courtesy of Mr. Nobody. The automatic updater should notify you of this as soon as the update is approved on Glass.